when it made its entrance to the california science center it was more than 15 hours late. even for a commute in los angeles this was a whopper. it took the shuttle more than 60 hours to complete the 12 mile route from lax to the museum. on friday it snuck a late night at a doughnut shop. >> such an amazing bit of technology, history, adventure. >> reporter: when "endeavour" arrived it was an hour ahead of schedule but then everything showed the shuttle's role. >> thought i missed it this morning. when i turned on the news, great i'll see it. >> reporter: the crowds suffering dehydration in the sun got in the way. the wing span almost clipped buildings and trees. the city had already cut down 400 trees and raised 100 power lines to give the five story shuttle enough room yet dodging space junk is apparently easier than ducking power poles. more trees were trimmed. the shuttle lost more time when a scheduled maintenance stop stretch from two hours to five. then came the final stretch. the shuttle shuffled down martin luther king, jr. boulevard, navigating historic pine trees